The DJ41 is a little too big for me, and flashy. The extra 5m in size give the whole watch a different look in my opinion. I donít go bigger than 40m. My 36m DJ I feel is the perfect size. Could be worn with a suit, or jeans and T-shirt.

I just traded a mint Z-serial Pepsi GMT 16710 and a Sub 14060M (plus cash) for a 1972 1680 Red Sub.
I've always wanted a red sub and now I finally have it. It came on a new bracelet, but that's the usual replacement from Rolex. I like to wear this style on a NATO strap anyway.
VERY excited!!!

I just traded a mint Z-serial Pepsi GMT 16710 and a Sub 14060M (plus cash) for a 1972 1680 Red Sub.
I've always wanted a red sub and now I finally have it. It came on a new bracelet, but that's the usual replacement from Rolex. I like to wear this style on a NATO strap anyway.
VERY excited!!!

You need to put the tophat crystal back which makes the 1680 so unique.
Leave the Superdome for my SD instead hehe.

To my understand it is a 16610 Black DLC like you said, but it was a gift and is my first Rolex so wasn't sure how to 100% verify/check its authenticity

Ah, got it.

You could take it to a Rolex AD and they should be able to open it up and check the movement along with removal of the band to check the serial number a series number.
However, they won't be able to contact Rolex to check the legitimacy. The only way you can do that is if you send it to Rolex for service. Then it will be checked to see if it's legitimate and if it's stolen. If either of those cases are true, you'll never see your watch again.

It's weird, it's the only way to verify a Rolex. It seems like they could charge you a fee to verify your watch prior to purchase.

I had a 2 tone GMT master brand new, date is 1985. I took it to a rolex dealer who promptly said this looks fake, and would need a service/$700 to check.

I went on amazon, bought a nice kit, went on some rolex forums, they show you what to look for as far as authentic movements. I opened it and confirmed its legit, went to another AD and sold it for $8K